The impact of TDS, chlorides, and sulfates in water on material selection
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I would like to ask everyone: If the total dissolved solids in water are TDS = 1000 mg/L, chlorides = 250 mg/L, and sulfates = 250 mg/L, is it a problem to use a pump made of 304 material?
We know that certain chlorides present in solutions can provide corrosion protection for stainless steel, such as copper chloride, ammonium chloride, aluminum chloride, iron chloride, etc. Additionally, a certain amount of chloride ions in the liquid can cause stress corrosion cracking in the weld seam and the heat-affected zone. Additionally, stainless steel still has issues with corrosion resistance to certain sulfates. Therefore, when using stainless steel materials, it is essential to know what chlorides are present, what sulfates are present, and what the temperatures are.
The conditions are not complete; it’s impossible to make a judgment – factors such as pH value, temperature, flow rate, pressure, and so on.
Bro, don’t just talk without thinking; you definitely know the answer if you’ve used 2205. Fittings require prerequisites.
They only asked about the material selection, nothing else